explain why we say stateless beans does not maintain conversation state besides statefull maintains conversation state. give some examples...

2 Answers   HCL,

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java doesnot support multiple inhetance. but a interface can support.how the ambiguities are rectified in interfaces?

3 Answers  

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ejb session beans and entity beans?

1 Answers  

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java doesnot support multiple inhetance. but a interface can support.how the ambiguities are rectified in interfaces?

2 Answers   CGI,

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What do you understand by annotation in ejb to do the database entity relationships/mappings with examples?

0 Answers  

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Transaction Attributes? What is the use of ?RequiresNew?

1 Answers   HCL,

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What is difference between stateless and stateful?

0 Answers  

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Is method overloading allowed in ejb?

0 Answers  

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How bean-managed transactions will work?

1 Answers   Wipro,

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What is BDK?

3 Answers  

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How can a CORBA object, accessed from a EJB?

0 Answers  

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In my project iam integrating telephone line using some bridge. To connect my project to that telephone line they have give some jar file. Using dat i connected with that.. To handle that event like call attented, call disposed and idle time they have give one event listener class.. I did every thing and this class is alsoo called when a particular event is fired. The only thing is i wanna call EJB from that event listener method.. But the EJB is not getting initated and exception is thrown. This below shownn error is occured only i try to call it from this event listener class. In other places EJB calling is working fine.. javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory] at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory] at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext.<init> (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more It would be more help full if i get the solution 10x in advance balaji

1 Answers  

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